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Authors
Chen, Xiaonan
Song, Jianfeng https://orcid.org/0000-0002-6820-980X
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Funding
Funding for this research was provided by:
Department of Resource and Social Security of Shaanxi Province (2015R027)
Humanities and Social Sciences Project of the Fundamental Research Funds for the Northwest Agricultural and Forestry University (2015RWYB02)
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Article History
Accepted: 9 November 2020
First Online: 4 January 2021
